Air quality index [µg/m3]:
excellent ≤ 12
good ≤ 36
lightly polluted ≤ 60
moderately polluted ≤ 84
heavily polluted ≤ 120
severely polluted > 120
PM 2.5
[µg/m3]
PM 10
HOUR OPOLSKA ST. ROOF (BEFORE FILTERS)  AIR SUPPLIED TO OFFICES
160020goodexcellent41excellent
150017goodexcellent41excellent
140013goodexcellent31excellent
130017goodexcellent41excellent
120019goodexcellent41excellent
110020goodexcellent41excellent
100018goodexcellent31excellent
090014goodexcellent21excellent
080017goodexcellent21excellent
070014goodexcellent11excellent
060014goodexcellent11excellent
050014goodexcellent11excellent
040013goodexcellent11excellent
030013goodexcellent11excellent
020012excellentexcellent11excellent
010010excellentexcellent11excellent
000011excellentexcellent11excellent
230014goodexcellent21excellent
220013goodexcellent11excellent
210011excellentexcellent11excellent
200014goodexcellent11excellent
190013goodexcellent11excellent
180014goodexcellent11excellent
170012excellentexcellent11excellent